drivers/staging/vt6656/key.c

   1 /*
   2  * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
   3  * All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  *
  20  * File: key.c
  21  *
  22  * Purpose: Implement functions for 802.11i Key management
  23  *
  24  * Author: Jerry Chen
  25  *
  26  * Date: May 29, 2003
  27  *
  28  * Functions:
  29  *      KeyvInitTable - Init Key management table
  30  *      KeybGetKey - Get Key from table
  31  *      KeybSetKey - Set Key to table
  32  *      KeybRemoveKey - Remove Key from table
  33  *      KeybGetTransmitKey - Get Transmit Key from table
  34  *
  35  * Revision History:
  36  *
  37  */
  38
  39 #include "tmacro.h"
  40 #include "key.h"
  41 #include "mac.h"
  42 #include "rndis.h"
  43 #include "control.h"
  44
  45 /*---------------------  Static Definitions -------------------------*/
  46
  47 /*---------------------  Static Classes  ----------------------------*/
  48
  49 /*---------------------  Static Variables  --------------------------*/
  50 static int          msglevel                =MSG_LEVEL_INFO;
  51 //static int          msglevel                =MSG_LEVEL_DEBUG;
  52 /*---------------------  Static Functions  --------------------------*/
  53
  54 /*---------------------  Export Variables  --------------------------*/
  55
  56 /*---------------------  Static Definitions -------------------------*/
  57
  58 /*---------------------  Static Classes  ----------------------------*/
  59
  60 /*---------------------  Static Variables  --------------------------*/
  61
  62 /*---------------------  Static Functions  --------------------------*/
  63 static void s_vCheckKeyTableValid(void *pDeviceHandler,
  64                                   PSKeyManagement pTable)
  65 {
  66     PSDevice    pDevice = (PSDevice) pDeviceHandler;
  67     int         i;
  68     WORD        wLength = 0;
  69     BYTE        pbyData[MAX_KEY_TABLE];
  70
  71     for (i=0;i<MAX_KEY_TABLE;i++) {
  72         if ((pTable->KeyTable[i].bInUse == TRUE) &&
  73             (pTable->KeyTable[i].PairwiseKey.bKeyValid == FALSE) &&
  74             (pTable->KeyTable[i].GroupKey[0].bKeyValid == FALSE) &&
  75             (pTable->KeyTable[i].GroupKey[1].bKeyValid == FALSE) &&
  76             (pTable->KeyTable[i].GroupKey[2].bKeyValid == FALSE) &&
  77             (pTable->KeyTable[i].GroupKey[3].bKeyValid == FALSE)
  78             ) {
  79
  80             pTable->KeyTable[i].bInUse = FALSE;
  81             pTable->KeyTable[i].wKeyCtl = 0;
  82             pTable->KeyTable[i].bSoftWEP = FALSE;
  83             pbyData[wLength++] = (BYTE) i;
  84             //MACvDisableKeyEntry(pDevice, i);
  85         }
  86     }
  87     if ( wLength != 0 ) {
  88         CONTROLnsRequestOut(pDevice,
  89                             MESSAGE_TYPE_CLRKEYENTRY,
  90                             0,
  91                             0,
  92                             wLength,
  93                             pbyData
  94                             );
  95     }
  96
  97 }
  98
  99
 100 /*---------------------  Export Functions  --------------------------*/
 101
 102
 103 /*
 104  * Description: Init Key management table
 105  *
 106  * Parameters:
 107  *  In:
 108  *      pTable          - Pointer to Key table
 109  *  Out:
 110  *      none
 111  *
 112  * Return Value: none
 113  *
 114  */
 115 void KeyvInitTable(void *pDeviceHandler, PSKeyManagement pTable)
 116 {
 117     PSDevice    pDevice = (PSDevice) pDeviceHandler;
 118     int i;
 119     int jj;
 120     BYTE       pbyData[MAX_KEY_TABLE+1];
 121
 122     spin_lock_irq(&pDevice->lock);
 123     for (i=0;i<MAX_KEY_TABLE;i++) {
 124         pTable->KeyTable[i].bInUse = FALSE;
 125         pTable->KeyTable[i].PairwiseKey.bKeyValid = FALSE;
 126         pTable->KeyTable[i].PairwiseKey.pvKeyTable =
 127           (void *)&pTable->KeyTable[i];
 128         for (jj=0; jj < MAX_GROUP_KEY; jj++) {
 129             pTable->KeyTable[i].GroupKey[jj].bKeyValid = FALSE;
 130             pTable->KeyTable[i].GroupKey[jj].pvKeyTable =
 131               (void *) &(pTable->KeyTable[i]);
 132         }
 133         pTable->KeyTable[i].wKeyCtl = 0;
 134         pTable->KeyTable[i].dwGTKeyIndex = 0;
 135         pTable->KeyTable[i].bSoftWEP = FALSE;
 136         pbyData[i] = (BYTE) i;
 137     }
 138     pbyData[i] = (BYTE) i;
 139     CONTROLnsRequestOut(pDevice,
 140                         MESSAGE_TYPE_CLRKEYENTRY,
 141                         0,
 142                         0,
 143                         11,
 144                         pbyData
 145                         );
 146
 147     spin_unlock_irq(&pDevice->lock);
 148
 149     return;
 150 }
 151
 152
 153 /*
 154  * Description: Get Key from table
 155  *
 156  * Parameters:
 157  *  In:
 158  *      pTable          - Pointer to Key table
 159  *      pbyBSSID        - BSSID of Key
 160  *      dwKeyIndex      - Key Index (0xFFFFFFFF means pairwise key)
 161  *  Out:
 162  *      pKey            - Key return
 163  *
 164  * Return Value: TRUE if found otherwise FALSE
 165  *
 166  */
 167 BOOL KeybGetKey(PSKeyManagement pTable, PBYTE pbyBSSID, DWORD dwKeyIndex,
 168                 PSKeyItem *pKey)
 169 {
 170     int i;
 171
 172     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"KeybGetKey() \n");
 173
 174     *pKey = NULL;
 175     for (i=0;i<MAX_KEY_TABLE;i++) {
 176         if ((pTable->KeyTable[i].bInUse == TRUE) &&
 177             !compare_ether_addr(pTable->KeyTable[i].abyBSSID, pbyBSSID)) {
 178             if (dwKeyIndex == 0xFFFFFFFF) {
 179                 if (pTable->KeyTable[i].PairwiseKey.bKeyValid == TRUE) {
 180                     *pKey = &(pTable->KeyTable[i].PairwiseKey);
 181                     return (TRUE);
 182                 }
 183                 else {
 184                     return (FALSE);
 185                 }
 186             } else if (dwKeyIndex < MAX_GROUP_KEY) {
 187                 if (pTable->KeyTable[i].GroupKey[dwKeyIndex].bKeyValid == TRUE) {
 188                     *pKey = &(pTable->KeyTable[i].GroupKey[dwKeyIndex]);
 189                     return (TRUE);
 190                 }
 191                 else {
 192                     return (FALSE);
 193                 }
 194             }
 195             else {
 196                 return (FALSE);
 197             }
 198         }
 199     }
 200     return (FALSE);
 201 }
 202
 203
 204 /*
 205  * Description: Set Key to table
 206  *
 207  * Parameters:
 208  *  In:
 209  *      pTable          - Pointer to Key table
 210  *      pbyBSSID        - BSSID of Key
 211  *      dwKeyIndex      - Key index (reference to NDIS DDK)
 212  *      uKeyLength      - Key length
 213  *      KeyRSC          - Key RSC
 214  *      pbyKey          - Pointer to key
 215  *  Out:
 216  *      none
 217  *
 218  * Return Value: TRUE if success otherwise FALSE
 219  *
 220  */
 221 BOOL KeybSetKey(
 222     void *pDeviceHandler,
 223     PSKeyManagement pTable,
 224     PBYTE           pbyBSSID,
 225     DWORD           dwKeyIndex,
 226     unsigned long           uKeyLength,
 227     PQWORD          pKeyRSC,
 228     PBYTE           pbyKey,
 229     BYTE            byKeyDecMode
 230     )
 231 {
 232     PSDevice    pDevice = (PSDevice) pDeviceHandler;
 233     int         i,j;
 234     unsigned int        ii;
 235     PSKeyItem   pKey;
 236     unsigned int        uKeyIdx;
 237
 238     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Enter KeybSetKey: %lX\n", dwKeyIndex);
 239
 240     j = (MAX_KEY_TABLE-1);
 241     for (i=0;i<(MAX_KEY_TABLE-1);i++) {
 242         if ((pTable->KeyTable[i].bInUse == FALSE) &&
 243             (j == (MAX_KEY_TABLE-1))) {
 244             // found empty table
 245             j = i;
 246         }
 247         if ((pTable->KeyTable[i].bInUse == TRUE) &&
 248             !compare_ether_addr(pTable->KeyTable[i].abyBSSID, pbyBSSID)) {
 249             // found table already exist
 250             if ((dwKeyIndex & PAIRWISE_KEY) != 0) {
 251                 // Pairwise key
 252                 pKey = &(pTable->KeyTable[i].PairwiseKey);
 253                 pTable->KeyTable[i].wKeyCtl &= 0xFFF0;          // clear pairwise key control filed
 254                 pTable->KeyTable[i].wKeyCtl |= byKeyDecMode;
 255                 uKeyIdx = 4;                                    // use HW key entry 4 for pairwise key
 256             } else {
 257                 // Group key
 258                 if ((dwKeyIndex & 0x000000FF) >= MAX_GROUP_KEY)
 259                     return (FALSE);
 260                 pKey = &(pTable->KeyTable[i].GroupKey[dwKeyIndex & 0x000000FF]);
 261                 if ((dwKeyIndex & TRANSMIT_KEY) != 0)  {
 262                     // Group transmit key
 263                     pTable->KeyTable[i].dwGTKeyIndex = dwKeyIndex;
 264                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Group transmit key(R)[%lX]: %d\n", pTable->KeyTable[i].dwGTKeyIndex, i);
 265                 }
 266                 pTable->KeyTable[i].wKeyCtl &= 0xFF0F;          // clear group key control filed
 267                 pTable->KeyTable[i].wKeyCtl |= (byKeyDecMode << 4);
 268                 pTable->KeyTable[i].wKeyCtl |= 0x0040;          // use group key for group address
 269                 uKeyIdx = (dwKeyIndex & 0x000000FF);
 270             }
 271             pTable->KeyTable[i].wKeyCtl |= 0x8000;              // enable on-fly
 272
 273             pKey->bKeyValid = TRUE;
 274             pKey->uKeyLength = uKeyLength;
 275             pKey->dwKeyIndex = dwKeyIndex;
 276             pKey->byCipherSuite = byKeyDecMode;
 277             memcpy(pKey->abyKey, pbyKey, uKeyLength);
 278             if (byKeyDecMode == KEY_CTL_WEP) {
 279                 if (uKeyLength == WLAN_WEP40_KEYLEN)
 280                     pKey->abyKey[15] &= 0x7F;
 281                 if (uKeyLength == WLAN_WEP104_KEYLEN)
 282                     pKey->abyKey[15] |= 0x80;
 283             }
 284             MACvSetKeyEntry(pDevice, pTable->KeyTable[i].wKeyCtl, i, uKeyIdx, pbyBSSID, (PDWORD)pKey->abyKey);
 285
 286             if ((dwKeyIndex & USE_KEYRSC) == 0) {
 287                 // RSC set by NIC
 288                     memset(&(pKey->KeyRSC), 0, sizeof(QWORD));
 289             }
 290             else {
 291                 memcpy(&(pKey->KeyRSC), pKeyRSC,  sizeof(QWORD));
 292             }
 293             pKey->dwTSC47_16 = 0;
 294             pKey->wTSC15_0 = 0;
 295
 296             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"KeybSetKey(R): \n");
 297             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->bKeyValid: %d\n ", pKey->bKeyValid);
 298             //DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->uKeyLength: %d\n ", pKey->uKeyLength);
 299             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->abyKey: ");
 300             for (ii = 0; ii < pKey->uKeyLength; ii++) {
 301                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%02x ", pKey->abyKey[ii]);
 302             }
 303             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
 304
 305             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwTSC47_16: %lx\n ", pKey->dwTSC47_16);
 306             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->wTSC15_0: %x\n ", pKey->wTSC15_0);
 307             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwKeyIndex: %lx\n ", pKey->dwKeyIndex);
 308
 309             return (TRUE);
 310         }
 311     }
 312     if (j < (MAX_KEY_TABLE-1)) {
 313         memcpy(pTable->KeyTable[j].abyBSSID, pbyBSSID, ETH_ALEN);
 314         pTable->KeyTable[j].bInUse = TRUE;
 315         if ((dwKeyIndex & PAIRWISE_KEY) != 0)  {
 316             // Pairwise key
 317             pKey = &(pTable->KeyTable[j].PairwiseKey);
 318             pTable->KeyTable[j].wKeyCtl &= 0xFFF0;          // clear pairwise key control filed
 319             pTable->KeyTable[j].wKeyCtl |= byKeyDecMode;
 320             uKeyIdx = 4;                                    // use HW key entry 4 for pairwise key
 321         } else {
 322             // Group key
 323             if ((dwKeyIndex & 0x000000FF) >= MAX_GROUP_KEY)
 324                 return (FALSE);
 325             pKey = &(pTable->KeyTable[j].GroupKey[dwKeyIndex & 0x000000FF]);
 326             if ((dwKeyIndex & TRANSMIT_KEY) != 0)  {
 327                 // Group transmit key
 328                 pTable->KeyTable[j].dwGTKeyIndex = dwKeyIndex;
 329                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Group transmit key(N)[%lX]: %d\n", pTable->KeyTable[j].dwGTKeyIndex, j);
 330             }
 331             pTable->KeyTable[j].wKeyCtl &= 0xFF0F;          // clear group key control filed
 332             pTable->KeyTable[j].wKeyCtl |= (byKeyDecMode << 4);
 333             pTable->KeyTable[j].wKeyCtl |= 0x0040;          // use group key for group address
 334             uKeyIdx = (dwKeyIndex & 0x000000FF);
 335         }
 336         pTable->KeyTable[j].wKeyCtl |= 0x8000;              // enable on-fly
 337
 338         pKey->bKeyValid = TRUE;
 339         pKey->uKeyLength = uKeyLength;
 340         pKey->dwKeyIndex = dwKeyIndex;
 341         pKey->byCipherSuite = byKeyDecMode;
 342         memcpy(pKey->abyKey, pbyKey, uKeyLength);
 343         if (byKeyDecMode == KEY_CTL_WEP) {
 344             if (uKeyLength == WLAN_WEP40_KEYLEN)
 345                 pKey->abyKey[15] &= 0x7F;
 346             if (uKeyLength == WLAN_WEP104_KEYLEN)
 347                 pKey->abyKey[15] |= 0x80;
 348         }
 349         MACvSetKeyEntry(pDevice, pTable->KeyTable[j].wKeyCtl, j, uKeyIdx, pbyBSSID, (PDWORD)pKey->abyKey);
 350
 351         if ((dwKeyIndex & USE_KEYRSC) == 0) {
 352             // RSC set by NIC
 353                 memset(&(pKey->KeyRSC), 0, sizeof(QWORD));
 354         }
 355         else {
 356             memcpy(&(pKey->KeyRSC), pKeyRSC,  sizeof(QWORD));
 357         }
 358         pKey->dwTSC47_16 = 0;
 359         pKey->wTSC15_0 = 0;
 360
 361         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"KeybSetKey(N): \n");
 362         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->bKeyValid: %d\n ", pKey->bKeyValid);
 363         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->uKeyLength: %d\n ", (int)pKey->uKeyLength);
 364         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->abyKey: ");
 365         for (ii = 0; ii < pKey->uKeyLength; ii++) {
 366             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%02x ", pKey->abyKey[ii]);
 367         }
 368         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
 369
 370         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwTSC47_16: %lx\n ", pKey->dwTSC47_16);
 371         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->wTSC15_0: %x\n ", pKey->wTSC15_0);
 372         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwKeyIndex: %lx\n ", pKey->dwKeyIndex);
 373
 374         return (TRUE);
 375     }
 376     return (FALSE);
 377 }
 378
 379
 380 /*
 381  * Description: Remove Key from table
 382  *
 383  * Parameters:
 384  *  In:
 385  *      pTable          - Pointer to Key table
 386  *      pbyBSSID        - BSSID of Key
 387  *      dwKeyIndex      - Key Index (reference to NDIS DDK)
 388  *  Out:
 389  *      none
 390  *
 391  * Return Value: TRUE if success otherwise FALSE
 392  *
 393  */
 394 BOOL KeybRemoveKey(
 395     void *pDeviceHandler,
 396     PSKeyManagement pTable,
 397     PBYTE           pbyBSSID,
 398     DWORD           dwKeyIndex
 399     )
 400 {
 401     PSDevice    pDevice = (PSDevice) pDeviceHandler;
 402     int     i;
 403     BOOL    bReturnValue = FALSE;
 404
 405     if (is_broadcast_ether_addr(pbyBSSID)) {
 406         // delete all keys
 407         if ((dwKeyIndex & PAIRWISE_KEY) != 0) {
 408             for (i=0;i<MAX_KEY_TABLE;i++) {
 409                 pTable->KeyTable[i].PairwiseKey.bKeyValid = FALSE;
 410             }
 411             bReturnValue =  TRUE;
 412         }
 413         else if ((dwKeyIndex & 0x000000FF) < MAX_GROUP_KEY) {
 414             for (i=0;i<MAX_KEY_TABLE;i++) {
 415                 pTable->KeyTable[i].GroupKey[dwKeyIndex & 0x000000FF].bKeyValid = FALSE;
 416                 if ((dwKeyIndex & 0x7FFFFFFF) == (pTable->KeyTable[i].dwGTKeyIndex & 0x7FFFFFFF)) {
 417                     // remove Group transmit key
 418                     pTable->KeyTable[i].dwGTKeyIndex = 0;
 419                 }
 420             }
 421             bReturnValue = TRUE;
 422         }
 423         else {
 424             bReturnValue = FALSE;
 425         }
 426
 427     } else {
 428         for (i=0;i<MAX_KEY_TABLE;i++) {
 429             if ( (pTable->KeyTable[i].bInUse == TRUE) &&
 430                  !compare_ether_addr(pTable->KeyTable[i].abyBSSID, pbyBSSID)) {
 431
 432                 if ((dwKeyIndex & PAIRWISE_KEY) != 0) {
 433                     pTable->KeyTable[i].PairwiseKey.bKeyValid = FALSE;
 434                     bReturnValue = TRUE;
 435                     break;
 436                 }
 437                 else if ((dwKeyIndex & 0x000000FF) < MAX_GROUP_KEY) {
 438                     pTable->KeyTable[i].GroupKey[dwKeyIndex & 0x000000FF].bKeyValid = FALSE;
 439                     if ((dwKeyIndex & 0x7FFFFFFF) == (pTable->KeyTable[i].dwGTKeyIndex & 0x7FFFFFFF)) {
 440                         // remove Group transmit key
 441                         pTable->KeyTable[i].dwGTKeyIndex = 0;
 442                     }
 443                     bReturnValue = TRUE;
 444                     break;
 445                 }
 446                 else {
 447                     bReturnValue = FALSE;
 448                     break;
 449                 }
 450             } //pTable->KeyTable[i].bInUse == TRUE
 451         }  //for
 452         bReturnValue = TRUE;
 453     }
 454
 455     s_vCheckKeyTableValid(pDevice,pTable);
 456     return bReturnValue;
 457
 458
 459 }
 460
 461
 462 /*
 463  * Description: Remove Key from table
 464  *
 465  * Parameters:
 466  *  In:
 467  *      pTable          - Pointer to Key table
 468  *      pbyBSSID        - BSSID of Key
 469  *  Out:
 470  *      none
 471  *
 472  * Return Value: TRUE if success otherwise FALSE
 473  *
 474  */
 475 BOOL KeybRemoveAllKey(
 476     void *pDeviceHandler,
 477     PSKeyManagement pTable,
 478     PBYTE           pbyBSSID
 479     )
 480 {
 481     PSDevice    pDevice = (PSDevice) pDeviceHandler;
 482     int  i,u;
 483
 484     for (i=0;i<MAX_KEY_TABLE;i++) {
 485         if ((pTable->KeyTable[i].bInUse == TRUE) &&
 486             !compare_ether_addr(pTable->KeyTable[i].abyBSSID, pbyBSSID)) {
 487             pTable->KeyTable[i].PairwiseKey.bKeyValid = FALSE;
 488             for (u = 0; u < MAX_GROUP_KEY; u++)
 489                 pTable->KeyTable[i].GroupKey[u].bKeyValid = FALSE;
 490
 491             pTable->KeyTable[i].dwGTKeyIndex = 0;
 492             s_vCheckKeyTableValid(pDevice, pTable);
 493             return (TRUE);
 494         }
 495     }
 496     return (FALSE);
 497 }
 498
 499 /*
 500  * Description: Remove WEP Key from table
 501  *
 502  * Parameters:
 503  *  In:
 504  *      pTable          - Pointer to Key table
 505  *  Out:
 506  *      none
 507  *
 508  * Return Value: TRUE if success otherwise FALSE
 509  *
 510  */
 511 void KeyvRemoveWEPKey(
 512     void *pDeviceHandler,
 513     PSKeyManagement pTable,
 514     DWORD           dwKeyIndex
 515     )
 516 {
 517     PSDevice    pDevice = (PSDevice) pDeviceHandler;
 518
 519    if ((dwKeyIndex & 0x000000FF) < MAX_GROUP_KEY) {
 520         if (pTable->KeyTable[MAX_KEY_TABLE-1].bInUse == TRUE) {
 521             if (pTable->KeyTable[MAX_KEY_TABLE-1].GroupKey[dwKeyIndex & 0x000000FF].byCipherSuite == KEY_CTL_WEP) {
 522                 pTable->KeyTable[MAX_KEY_TABLE-1].GroupKey[dwKeyIndex & 0x000000FF].bKeyValid = FALSE;
 523                 if ((dwKeyIndex & 0x7FFFFFFF) == (pTable->KeyTable[MAX_KEY_TABLE-1].dwGTKeyIndex & 0x7FFFFFFF)) {
 524                     // remove Group transmit key
 525                     pTable->KeyTable[MAX_KEY_TABLE-1].dwGTKeyIndex = 0;
 526                 }
 527             }
 528         }
 529         s_vCheckKeyTableValid(pDevice, pTable);
 530     }
 531     return;
 532 }
 533
 534 void KeyvRemoveAllWEPKey(void *pDeviceHandler, PSKeyManagement pTable)
 535 {
 536         PSDevice pDevice = (PSDevice) pDeviceHandler;
 537         int i;
 538
 539         for (i = 0; i < MAX_GROUP_KEY; i++)
 540                 KeyvRemoveWEPKey(pDevice, pTable, i);
 541 }
 542
 543 /*
 544  * Description: Get Transmit Key from table
 545  *
 546  * Parameters:
 547  *  In:
 548  *      pTable          - Pointer to Key table
 549  *      pbyBSSID        - BSSID of Key
 550  *  Out:
 551  *      pKey            - Key return
 552  *
 553  * Return Value: TRUE if found otherwise FALSE
 554  *
 555  */
 556 BOOL KeybGetTransmitKey(PSKeyManagement pTable, PBYTE pbyBSSID, DWORD dwKeyType,
 557                         PSKeyItem *pKey)
 558 {
 559     int i, ii;
 560
 561     *pKey = NULL;
 562     for (i = 0; i < MAX_KEY_TABLE; i++) {
 563         if ((pTable->KeyTable[i].bInUse == TRUE) &&
 564             !compare_ether_addr(pTable->KeyTable[i].abyBSSID, pbyBSSID)) {
 565
 566             if (dwKeyType == PAIRWISE_KEY) {
 567
 568                 if (pTable->KeyTable[i].PairwiseKey.bKeyValid == TRUE) {
 569                     *pKey = &(pTable->KeyTable[i].PairwiseKey);
 570
 571                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"KeybGetTransmitKey:");
 572                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"PAIRWISE_KEY: KeyTable.abyBSSID: ");
 573                     for (ii = 0; ii < 6; ii++) {
 574                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"%x ", pTable->KeyTable[i].abyBSSID[ii]);
 575                     }
 576                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
 577
 578
 579                     return (TRUE);
 580                 }
 581                 else {
 582                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"PairwiseKey.bKeyValid == FALSE\n");
 583                     return (FALSE);
 584                 }
 585             } // End of Type == PAIRWISE
 586             else {
 587                 if (pTable->KeyTable[i].dwGTKeyIndex == 0) {
 588                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ERROR: dwGTKeyIndex == 0 !!!\n");
 589                     return FALSE;
 590                 }
 591                 if (pTable->KeyTable[i].GroupKey[(pTable->KeyTable[i].dwGTKeyIndex&0x000000FF)].bKeyValid == TRUE) {
 592                     *pKey = &(pTable->KeyTable[i].GroupKey[(pTable->KeyTable[i].dwGTKeyIndex&0x000000FF)]);
 593
 594                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"KeybGetTransmitKey:");
 595                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"GROUP_KEY: KeyTable.abyBSSID\n");
 596                         for (ii = 0; ii < 6; ii++) {
 597                             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"%x ", pTable->KeyTable[i].abyBSSID[ii]);
 598                         }
 599                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
 600                         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"dwGTKeyIndex: %lX\n", pTable->KeyTable[i].dwGTKeyIndex);
 601
 602                     return (TRUE);
 603                 }
 604                 else {
 605                     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"GroupKey.bKeyValid == FALSE\n");
 606                     return (FALSE);
 607                 }
 608             } // End of Type = GROUP
 609         } // BSSID match
 610     }
 611     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ERROR: NO Match BSSID !!! ");
 612     for (ii = 0; ii < 6; ii++) {
 613         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"%02x ", *(pbyBSSID+ii));
 614     }
 615     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
 616     return (FALSE);
 617 }
 618
 619
 620 /*
 621  * Description: Check Pairwise Key
 622  *
 623  * Parameters:
 624  *  In:
 625  *      pTable          - Pointer to Key table
 626  *  Out:
 627  *      none
 628  *
 629  * Return Value: TRUE if found otherwise FALSE
 630  *
 631  */
 632 BOOL KeybCheckPairewiseKey(PSKeyManagement pTable, PSKeyItem *pKey)
 633 {
 634     int i;
 635
 636     *pKey = NULL;
 637     for (i=0;i<MAX_KEY_TABLE;i++) {
 638         if ((pTable->KeyTable[i].bInUse == TRUE) &&
 639             (pTable->KeyTable[i].PairwiseKey.bKeyValid == TRUE)) {
 640             *pKey = &(pTable->KeyTable[i].PairwiseKey);
 641             return (TRUE);
 642         }
 643     }
 644     return (FALSE);
 645 }
 646
 647 /*
 648  * Description: Set Key to table
 649  *
 650  * Parameters:
 651  *  In:
 652  *      pTable          - Pointer to Key table
 653  *      dwKeyIndex      - Key index (reference to NDIS DDK)
 654  *      uKeyLength      - Key length
 655  *      KeyRSC          - Key RSC
 656  *      pbyKey          - Pointer to key
 657  *  Out:
 658  *      none
 659  *
 660  * Return Value: TRUE if success otherwise FALSE
 661  *
 662  */
 663 BOOL KeybSetDefaultKey(
 664     void *pDeviceHandler,
 665     PSKeyManagement pTable,
 666     DWORD           dwKeyIndex,
 667     unsigned long           uKeyLength,
 668     PQWORD          pKeyRSC,
 669     PBYTE           pbyKey,
 670     BYTE            byKeyDecMode
 671     )
 672 {
 673     PSDevice    pDevice = (PSDevice) pDeviceHandler;
 674     unsigned int        ii;
 675     PSKeyItem   pKey;
 676     unsigned int        uKeyIdx;
 677
 678     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Enter KeybSetDefaultKey: %1x, %d\n",
 679             (int) dwKeyIndex, (int) uKeyLength);
 680
 681     if ((dwKeyIndex & PAIRWISE_KEY) != 0) {                  // Pairwise key
 682         return (FALSE);
 683     } else if ((dwKeyIndex & 0x000000FF) >= MAX_GROUP_KEY) {
 684         return (FALSE);
 685     }
 686
 687     if (uKeyLength > MAX_KEY_LEN)
 688             return false;
 689
 690     pTable->KeyTable[MAX_KEY_TABLE-1].bInUse = TRUE;
 691     for (ii = 0; ii < ETH_ALEN; ii++)
 692         pTable->KeyTable[MAX_KEY_TABLE-1].abyBSSID[ii] = 0xFF;
 693
 694     // Group key
 695     pKey = &(pTable->KeyTable[MAX_KEY_TABLE-1].GroupKey[dwKeyIndex & 0x000000FF]);
 696     if ((dwKeyIndex & TRANSMIT_KEY) != 0)  {
 697         // Group transmit key
 698         pTable->KeyTable[MAX_KEY_TABLE-1].dwGTKeyIndex = dwKeyIndex;
 699         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Group transmit key(R)[%lX]: %d\n", pTable->KeyTable[MAX_KEY_TABLE-1].dwGTKeyIndex, MAX_KEY_TABLE-1);
 700
 701     }
 702     pTable->KeyTable[MAX_KEY_TABLE-1].wKeyCtl &= 0x7F00;          // clear all key control filed
 703     pTable->KeyTable[MAX_KEY_TABLE-1].wKeyCtl |= (byKeyDecMode << 4);
 704     pTable->KeyTable[MAX_KEY_TABLE-1].wKeyCtl |= (byKeyDecMode);
 705     pTable->KeyTable[MAX_KEY_TABLE-1].wKeyCtl |= 0x0044;          // use group key for all address
 706     uKeyIdx = (dwKeyIndex & 0x000000FF);
 707
 708     if ((uKeyLength == WLAN_WEP232_KEYLEN) &&
 709         (byKeyDecMode == KEY_CTL_WEP)) {
 710         pTable->KeyTable[MAX_KEY_TABLE-1].wKeyCtl |= 0x4000;              // disable on-fly disable address match
 711         pTable->KeyTable[MAX_KEY_TABLE-1].bSoftWEP = TRUE;
 712     } else {
 713         if (pTable->KeyTable[MAX_KEY_TABLE-1].bSoftWEP == FALSE)
 714             pTable->KeyTable[MAX_KEY_TABLE-1].wKeyCtl |= 0xC000;          // enable on-fly disable address match
 715     }
 716
 717     pKey->bKeyValid = TRUE;
 718     pKey->uKeyLength = uKeyLength;
 719     pKey->dwKeyIndex = dwKeyIndex;
 720     pKey->byCipherSuite = byKeyDecMode;
 721     memcpy(pKey->abyKey, pbyKey, uKeyLength);
 722     if (byKeyDecMode == KEY_CTL_WEP) {
 723         if (uKeyLength == WLAN_WEP40_KEYLEN)
 724             pKey->abyKey[15] &= 0x7F;
 725         if (uKeyLength == WLAN_WEP104_KEYLEN)
 726             pKey->abyKey[15] |= 0x80;
 727     }
 728
 729     MACvSetKeyEntry(pDevice, pTable->KeyTable[MAX_KEY_TABLE-1].wKeyCtl, MAX_KEY_TABLE-1, uKeyIdx, pTable->KeyTable[MAX_KEY_TABLE-1].abyBSSID, (PDWORD) pKey->abyKey);
 730
 731     if ((dwKeyIndex & USE_KEYRSC) == 0) {
 732         // RSC set by NIC
 733             memset(&(pKey->KeyRSC), 0, sizeof(QWORD));
 734     } else {
 735         memcpy(&(pKey->KeyRSC), pKeyRSC,  sizeof(QWORD));
 736     }
 737     pKey->dwTSC47_16 = 0;
 738     pKey->wTSC15_0 = 0;
 739
 740
 741     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"KeybSetKey(R): \n");
 742     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->bKeyValid: %d\n", pKey->bKeyValid);
 743     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->uKeyLength: %d\n", (int)pKey->uKeyLength);
 744     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->abyKey: \n");
 745     for (ii = 0; ii < pKey->uKeyLength; ii++) {
 746         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"%x", pKey->abyKey[ii]);
 747     }
 748     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
 749
 750     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwTSC47_16: %lx\n", pKey->dwTSC47_16);
 751     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->wTSC15_0: %x\n", pKey->wTSC15_0);
 752     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->dwKeyIndex: %lx\n", pKey->dwKeyIndex);
 753
 754     return (TRUE);
 755 }
 756
 757
 758 /*
 759  * Description: Set Key to table
 760  *
 761  * Parameters:
 762  *  In:
 763  *      pTable          - Pointer to Key table
 764  *      dwKeyIndex      - Key index (reference to NDIS DDK)
 765  *      uKeyLength      - Key length
 766  *      KeyRSC          - Key RSC
 767  *      pbyKey          - Pointer to key
 768  *  Out:
 769  *      none
 770  *
 771  * Return Value: TRUE if success otherwise FALSE
 772  *
 773  */
 774 BOOL KeybSetAllGroupKey(
 775     void *pDeviceHandler,
 776     PSKeyManagement pTable,
 777     DWORD           dwKeyIndex,
 778     unsigned long           uKeyLength,
 779     PQWORD          pKeyRSC,
 780     PBYTE           pbyKey,
 781     BYTE            byKeyDecMode
 782     )
 783 {
 784     PSDevice    pDevice = (PSDevice) pDeviceHandler;
 785     int         i;
 786     unsigned int        ii;
 787     PSKeyItem   pKey;
 788     unsigned int        uKeyIdx;
 789
 790     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Enter KeybSetAllGroupKey: %lX\n", dwKeyIndex);
 791
 792
 793     if ((dwKeyIndex & PAIRWISE_KEY) != 0) {                  // Pairwise key
 794         return (FALSE);
 795     } else if ((dwKeyIndex & 0x000000FF) >= MAX_GROUP_KEY) {
 796         return (FALSE);
 797     }
 798
 799     for (i=0; i < MAX_KEY_TABLE-1; i++) {
 800         if (pTable->KeyTable[i].bInUse == TRUE) {
 801             // found table already exist
 802             // Group key
 803             pKey = &(pTable->KeyTable[i].GroupKey[dwKeyIndex & 0x000000FF]);
 804             if ((dwKeyIndex & TRANSMIT_KEY) != 0)  {
 805                 // Group transmit key
 806                 pTable->KeyTable[i].dwGTKeyIndex = dwKeyIndex;
 807                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Group transmit key(R)[%lX]: %d\n", pTable->KeyTable[i].dwGTKeyIndex, i);
 808
 809             }
 810             pTable->KeyTable[i].wKeyCtl &= 0xFF0F;          // clear group key control filed
 811             pTable->KeyTable[i].wKeyCtl |= (byKeyDecMode << 4);
 812             pTable->KeyTable[i].wKeyCtl |= 0x0040;          // use group key for group address
 813             uKeyIdx = (dwKeyIndex & 0x000000FF);
 814
 815             pTable->KeyTable[i].wKeyCtl |= 0x8000;              // enable on-fly
 816
 817             pKey->bKeyValid = TRUE;
 818             pKey->uKeyLength = uKeyLength;
 819             pKey->dwKeyIndex = dwKeyIndex;
 820             pKey->byCipherSuite = byKeyDecMode;
 821             memcpy(pKey->abyKey, pbyKey, uKeyLength);
 822             if (byKeyDecMode == KEY_CTL_WEP) {
 823                 if (uKeyLength == WLAN_WEP40_KEYLEN)
 824                     pKey->abyKey[15] &= 0x7F;
 825                 if (uKeyLength == WLAN_WEP104_KEYLEN)
 826                     pKey->abyKey[15] |= 0x80;
 827             }
 828
 829             MACvSetKeyEntry(pDevice, pTable->KeyTable[i].wKeyCtl, i, uKeyIdx, pTable->KeyTable[i].abyBSSID, (PDWORD) pKey->abyKey);
 830
 831             if ((dwKeyIndex & USE_KEYRSC) == 0) {
 832                 // RSC set by NIC
 833                     memset(&(pKey->KeyRSC), 0, sizeof(QWORD));
 834             }
 835             else {
 836                 memcpy(&(pKey->KeyRSC), pKeyRSC,  sizeof(QWORD));
 837             }
 838             pKey->dwTSC47_16 = 0;
 839             pKey->wTSC15_0 = 0;
 840
 841             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"KeybSetKey(R): \n");
 842             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->bKeyValid: %d\n ", pKey->bKeyValid);
 843             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->uKeyLength: %d\n ", (int)pKey->uKeyLength);
 844             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pKey->abyKey: ");
 845             for (ii = 0; ii < pKey->uKeyLength; ii++) {
 846                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"%02x ", pKey->abyKey[ii]);
 847             }
 848             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"\n");
 849
 850             //DBG_PRN_GRP12(("pKey->dwTSC47_16: %lX\n ", pKey->dwTSC47_16));
 851             //DBG_PRN_GRP12(("pKey->wTSC15_0: %X\n ", pKey->wTSC15_0));
 852             //DBG_PRN_GRP12(("pKey->dwKeyIndex: %lX\n ", pKey->dwKeyIndex));
 853
 854         } // (pTable->KeyTable[i].bInUse == TRUE)
 855     }
 856     return (TRUE);
 857 }